BTW i don't get all this anti-immigration sentiment on here. Considering the amount of fiscal conservatives who seem to be opposed to amnesty and immigration from the south. It seems at odds with the real numbers done by real studies. Currently more than half are currently working on the books, i.e. paying income tax. They all pay taxes on goods and services used including accommodation, in a comprehensive study it was found that "approximately $80,000 more in taxes than they receive in state, federal and local benefits over their life times".
These studies are done by the council of economic advisers, the national research council, the executive office of the white house etc. It tells you exactly why no one has decided to 'kick them out' because it would cost us more money than it's worth. We would a) have to pay for the deportation etc, b) lose revenue from the taxes paid, c) miss out on revenue from the other 50% who work currently off the books and would be on the books if given amnesty. Economically it DOES NOT MAKE SENSE. So as fiscal conservatives how can you back kicking them all out?